MISCHIEFS is a playable word

mischief Scrabble® Dictionary

noun
pl. mischiefs
action that causes irritation, harm, or trouble
106 Playable Words can be made from "MISCHIEFS"
   2-Letter Words (14 found)
   3-Letter Words (27 found)
   6-Letter Words (6 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)
   9-Letter Words (1 found)